Car-door lock.



G. E. ALLISON;

GAR DOOR LOCK. APPLICATION FILED MAY 28, 1910.

Patented Aug. 30,1910.

jj J2 -lnventor Attorneys GEORGE E. ALLISON, 0F STOIVINGTON,CONNECTICUT.

CAR-DOOR LOCK.

Specification of Letters Patent.

Patented Aug. 30, 1910.

Application filed May 28, 1910. Serial No. 563,961.

To all whom it may concern:

Be it known that I, GEORGE E. ALLISON, a citizen of the United States,residing at Stonington, in the county of New London and State ofConnecticut, have invented a new and useful Car-Door Look, of which thefollowing is a specification.

This invention relates to car door locks and is designed to prevent theopening thereof except from the top of the car whereby any oneattempting to open the car door will be in full view of the crew of atrain or others who are employed to watch freight trains when standingin a freight yard, siding or the like.

It is proposed to have the lock include a hasp which can be convenientlymanipulated in locking and unlocking the same and to dispense with a keyfor cont-rolling the lock, the lock being under complete control bymeans accessible from the top of the car.

\Vith these and other objects in view the invention consists in certainnovel details of construction and the combination of parts hereinaftermore fully described and pointed out in the claims.

In the accompanying drawings the preferred form of the invention hasbeen shown.

In said drawings :F igure 1 is a vertical longitudinal section throughthe lock and through a portion of the car on which it is mounted. Fig. 2is a section on line AB Fig. 1.

Referring to the figures by characters of reference A designates thewall of the car and B designates the car door, there being an opening ain the said wall and close to the free vertical edge of the door whensaid door is shut. A hasp l is connected to the door and is offset as at2 so as to overlap one edge thereof, there being a loop 3 eX- tendedfrom one face of the hasp and adapted to project into and through theopening a.

A casing 4 is secured to the inner surface of the wall A and has acentral partition 5 arranged horizontally therein, said partitionforming an upper compartment 6 and a lower compartment 7 within thecasing, the outer end of said compartment being closed by the wall A.The slot at opens into the upper compartment 6 and is normally closed bymeans of a retaining slide 8 which is pressed yieldingly against thewall A, by means of a spring 9 seated within the compartment 6. Anopening 10 is formed in the partition 5 and in vertical alinement with aguide tube 11 extending from the top of the casing 4: and upwardly toand through the roof of the car, the upper end of the tube beingnormally closed by a cap 12 which may, if desired, be provided with aspring 13 for holding the cap normally closed. Moreover, if desired, anysuit-able sealing means may be employed for holding the cap closed. Arod 14 is slidably mounted in the upper portion of the tube, it beingmounted in a suitable guide 15, if preferred, and the lower end of therod being connected, by means of a chain 16 or the like, to a bolt 17which is loosely mounted in the lower end of the tube.

It isto be understood that when the loop 3 is withdrawn from the openinga, the spring 9 will press the slide 8 forward against the wall A andthe bolt 17 will thus be free to rest upon the slide 8 as shown inFig. 1. To look the door, the loop 3 of the hasp is inserted into theopening a and pressed against the slide 8 so as to force said slideinwardly from under the bolt 17 Said bolt will then promptly drop bygravity into the loop 3 and will be supported in the opening 10, thuslocking the hasp to the wall of the car. In order to unlock the door itis first necessary .to get onto the roof of the car and raise the cap 12after which the cap ll can be drawn upwardly and the chain or otherconnection 16 will thus lift the bolt 17 out of the loop 3 and also outof the path of the slide 8. The spring 9 will then promptly shift theslide toward the opening a and the loop 3 will be projected from saidopening and the door thus released.

It is to be understood of course that various changes may be made in theconstruction and arrangement of the parts without departing from thespirit or sacrificing any of the advantages of the invention as definedin the appended claims.

hat is claimed is 1. The combination with a car and door, of a haspcarried externally by the door, locking means carried by the car forengagement with the hasp, and means accessible from the roof of the caronly for releasing the hasp.

2. A look comprising a casing having a partition, a slidable boltworking into the casing and partition, a tubular guide for the bolt,spring pressed means for supporting the bolt at one limit, a hasp havinga loop to enter the casing for the reception of the bolt, said loopadapted to force the bolt supporting means out of engagement with saidbolt, and means in the guide for shifting the bolt.

3. A lock comprising a casing having a compartment therein and anopening in one Wall of said compartment, a bolt working across saidcompartment, a. tubular bolt guide extending from the casing, means inthe guide for shifting the bolt, a spring pressed supporting devicemovably mounted within the compartment and normally closing said openingand supporting the bolt at one limit and a hasp having a loop to enterthe opening to displace said supporting device and receive the bolt.

4. A lock comprising a casing having a compartment therein, a springpressed supporting device movably mounted within said compartment, abolt normally supported by said device, a hasp having a loop forinsertion into the compartment to displace said supporting device andreceive the bolt, and flexible means extending above the bolt forelevating said bolt.

5. The combination with a car and a door, of a casing secured to a wallof the car and having a compartment, there being an opening in said walland at one end of the compartment, a supporting device movably mountedwithin the compartment, means for holding said device normally in apredetermined position to close the opening, a bolt normally supportedby said device, a guide therefor, means housed Within the guide foractuating the bolt, said guide and means extending to and through theroof of the car, and a hasp connected to the door and having a loopinsertible through the opening and against the supporting device toshift said device and release the bolt.

6. The combination With a car and a door movably connected thereto,there being an opening in the wall of the car, of a casing having acompartment communicating with said opening, a guide tube extendingfronr the casing and through the roof of the car, a bolt slidablymounted within said guide, bolt operating means within the guide andextending to the top of the car, spring pressed bolt supporting meansslidably mounted within the casing, and a hasp having a loop insertibleinto the opening and against said means to release the bolt.

7. The combination with a car and a door movably connected thereto,there being an onening in the wall of the car, of a casing secured tothe wall and back of the opening. a guide tube extending upwardly fromthe casing and through the roof of the car, a closure upon the upper endof the tube, a locking bolt slidably mounted within said tube, boltactuating means normally housed within the tube, spring controlled meanswithin the casing for holding the bolt normally elevated, and a haspconnected to the door and having a loop insertible through the openingfor shifting the supporting means to release the bolt.

In testimony that I claim theforegoing as my own, I have hereto aflixedmy signature in the presence of two Witnesses.

GEORGE E. ALLISON.

\Vitnesses JOHN H. RYAN, ELIAS 13.. HINGKLEY.

